src/cx/fbn/nevernote/gui/Thumbnailer.java

   1 package cx.fbn.nevernote.gui;\r
   2 \r
   3 import com.trolltech.qt.core.QByteArray;\r
   4 import com.trolltech.qt.core.QFile;\r
   5 import com.trolltech.qt.core.QIODevice;\r
   6 import com.trolltech.qt.core.QObject;\r
   7 import com.trolltech.qt.core.QSize;\r
   8 import com.trolltech.qt.core.QUrl;\r
   9 import com.trolltech.qt.core.Qt.Orientation;\r
  10 import com.trolltech.qt.core.Qt.ScrollBarPolicy;\r
  11 import com.trolltech.qt.gui.QImage;\r
  12 import com.trolltech.qt.gui.QPainter;\r
  13 import com.trolltech.qt.webkit.QWebPage;\r
  14 \r
  15 import cx.fbn.nevernote.Global;\r
  16 \r
  17 public class Thumbnailer extends QObject {\r
  18     public QWebPage page;\r
  19     public QImage image;\r
  20     public QPainter painter;\r
  21     public Signal1<String> finished;\r
  22     public String guid;\r
  23     \r
  24     public Thumbnailer(String g, QSize s)\r
  25     {\r
  26         guid = g;\r
  27         finished = new Signal1<String>();\r
  28         page = new QWebPage();\r
  29         painter = new QPainter();\r
  30 \r
  31         page.mainFrame().setScrollBarPolicy(Orientation.Horizontal, ScrollBarPolicy.ScrollBarAlwaysOff);\r
  32         page.mainFrame().setScrollBarPolicy(Orientation.Vertical, ScrollBarPolicy.ScrollBarAlwaysOff);\r
  33         page.loadFinished.connect(this, "loadFinished(Boolean)");\r
  34     }\r
  35     \r
  36     public void setContent(String content) {\r
  37         QFile file = new QFile(Global.getFileManager().getResDirPath("thumbnail-" + guid + ".html"));\r
  38         file.open(new QIODevice.OpenMode(QIODevice.OpenModeFlag.WriteOnly));\r
  39         file.write(new QByteArray(content));\r
  40         file.close(); \r
  41         page.mainFrame().load(new QUrl(QUrl.fromLocalFile(file.fileName()).toString()));\r
  42     }\r
  43     \r
  44 \r
  45     \r
  46         public void loadFinished(Boolean ok)\r
  47     {\r
  48                 if (!ok)\r
  49                         return;\r
  50                 \r
  51         QSize size = page.currentFrame().contentsSize();\r
  52         if (size.height() > 2000)\r
  53                 size.setHeight(800);\r
  54         if (size.width() < 600)\r
  55                 size.setWidth(600);\r
  56         if (size.width() > 2000)\r
  57                 size.setWidth(600);\r
  58    \r
  59         page.setViewportSize(size);\r
  60         image = new QImage(size, QImage.Format.Format_RGB32);\r
  61         painter.begin(image);\r
  62 \r
  63         page.mainFrame().render(painter);             //<<<< THIS CAN LOCKUP if height too big!!!!\r
  64         painter.end();\r
  65         \r
  66         image.save(Global.getFileManager().getResDirPath("thumbnail-" + guid + ".png"));\r
  67         finished.emit(guid);\r
  68     }\r
  69 }\r